The future is here, folks!  An amazing video that has gone viral on YouTube showcases an amazing technology—a 3D printer that replicates tools, and pretty much anything else you can wrap your head around.  The video, a clip from National Geographic, has racked up a whopping 1.7 million views so far and is continuing to climb the YouTube charts.


Read More: Viral Radar: 3D Printer Replicates A Wrench…For Real! [Video]